How does Jean include a digital signature? What key does...

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Question by athan
Submitted on 11/23/2003
Related FAQ: Cryptography FAQ (01/10: Overview)
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How does Jean include a digital signature? What key does Jean use to encrypt the entire message including the digital signature?

Answer by Marcos Juarez
Submitted on 6/27/2004
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You're talking about two different things here. One is the encryption algorithm, which you use so that nobody but the intended recipient can read your message. Another entirely different thing is the digital signature, which you include with your message, so that the other person can be sure that you were really the one who wrote the message in the first place. A digital signature can be included without encryption, and viceversa. PGP, one of the most popular secure email algorithms, encrypts the digital signature along with the message itself.

Answer by einav
Submitted on 12/26/2004
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I need 2 use sign to my data with algoritem of hmac i coudnt find the parameter of the key and the algoritem id to use

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